CN105696717A - Comprehensive optimizing method for energy dissipaters in energy dissipating damping structure based on target addition effective damping ratios - Google Patents
Comprehensive optimizing method for energy dissipaters in energy dissipating damping structure based on target addition effective damping ratios Download PDFInfo
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Abstract
The invention discloses a comprehensive optimizing method for energy dissipaters in an energy dissipating damping structure based on target addition effective damping ratios. The comprehensive optimizing method comprises the following steps: selecting earthquake waves used for the elastic-plastic time-history analysis of a main body structure; setting the performance target and requirements of an energy dissipating damping structure when the main body structure rarely meets earthquake action; calculating the target actual addition effective damping ratio xiaim of the main body structure; primarily determining the type, distribution position, form and number of energy dissipaters; under the action of each earthquake wave, carrying out elastic-plastic time-history analysis on the energy dissipating damping structure as if rare earthquake is met; calculating the actual addition effective damping ratio xia of the energy dissipaters; and comparing xia with xiaim until, according to natural wave calculation, obtaining the following result: xia is larger than or equal to 0.65 xiaim and smaller than or equal to 1.1*0.65 xiaim; and according to artificial wave calculation, obtaining the following result: xia is larger than or equal to 0.8 xiaim and smaller than or equal to 1.1*0.8 xiaim. The reasonable adoption and arrangement of the energy dissipaters in the design of the energy dissipating damping structure are realized, the energy dissipaters are in a highly efficient work state, and the design technical and economical indexes of the energy dissipaters in the design of the energy dissipating damping structure are realized.
Description
Technical field
The present invention relates to the structure with energy dissipation devices in building structure technology field and analytical technology, particularly relate to the seismic energy dissipation structure sinker comprehensive optimization method of the additional effective damping ratio of a kind of based target。
Background technology
Mainly through structure and component, the antidetonation of conventional building construction occurs that in earthquake damage carrys out earthquake energy, and structure and component badly damaged is exactly conversion or the consumption process of seismic energy。In recent years, along with China's earthquake takes place frequently, cause building structure subject to severe risks of damage, endanger people's life and property safety。Effectively controlling requirement owing to being difficult to arrive to the mechanism of structure " firmly anti-" earthquake at present, therefore mode energy-dissipating and shock-absorbing technology extensive use gradually in building structure of " soft anti-" earthquake, complicated building structure and lifeline engineering are had great significance by it。
Energy-dissipating and shock-absorbing technology is a kind of to arrange the sinker passive control technology to the seismic energy that dissipates in building structure。Seismic energy dissipation structure includes agent structure and energy dissipation component, and the energy dissipation component component by sinker with for agent structure connection sinker forms。Sinker by internal material or and component between friction, utilize the deformation of elastoplasticity hysteresis or the deformation of glutinous (bullet) property hysteresis dissipate or absorb seismic energy。In brief, energy-dissipating and shock-absorbing technology is exactly arrange sinker at some position of major structure of construction, is dissipated by its deformation or absorbs the energy of Seismic input structure, to reduce the impact on agent structure, thus protecting agent structure。Conventional sinker has displacement relationship type sinker, velocity correlation type sinker and compound sinker etc.。
The Performance Design of seismic energy dissipation structure is to set corresponding performance objective for overall structure, partial structurtes, energy dissipation component, key position, important component, secondary member etc., it is analyzed designing to seismic energy dissipation structure according to the performance objective set, and it is crucial that reasonably to select and to arrange sinker in structure with energy dissipation devices, playing the energy dissipation behavior of sinker to greatest extent, the performance indications weighing sinker energy dissipation capacity are exactly its additional effective damping ratio。Namely the additional effective damping ratio of target of sinker is the energy-dissipating property target of sinker, and the type of sinker, selection quantity, arrangement form and position all can affect sinker entirety energy dissipation behavior, and then affect the realization of its performance objective。
In the Performance Design of seismic energy dissipation structure, the selection of sinker and layout can meet the requirement of the additional effective damping ratio of target substantially, but often there is energy dissipation component type and select unreasonable, quantity uses too much, the irrational defect of arrangement form and position, quantity to increase sinker exchanges its work quality for, sinker is caused to be in the duty of poor efficiency in seismic energy dissipation structure, this is accomplished by sinker is optimized design, namely rational sinker type is selected, determine its quantity, arrangement form and position, thus realizing technology and the economic rationality of sinker anti-seismic performance target。
At present, what the performance-based optimization of existing seismic energy dissipation structure was designed with is based on the sinker Optimization Design of displacement performance target, it is substantially using the relative storey displacement of each floor of major structure of construction or story drift as performance objective, thus sinker is optimized control, set multiple sinker arrangement, make agent structure meet and the little shake of Step wise approximation, middle shake and the big displacement performance targets at different levels shaking setting, therefrom determine the arrangement of a kind of sinker。
But, there is following defect in the performance-based optimization design of this seismic energy dissipation structure:
(1) it is from the displacement macroparameter index of major structure of construction, its essence purpose is to control the deformation of seismic energy dissipation structure, the optimization of sinker is only merely the position adjusting sinker, seldom relate to being optimized even without to quantity and the arrangement form aspect of sinker, sinker is caused to be in the duty of poor efficiency in seismic energy dissipation structure, although the technical index of sinker design in structure with energy dissipation devices can be basically reached, but economic index cannot be met。
(2) its essence purpose is to control the deformation of seismic energy dissipation structure, therefore, this optimization method is only limited to the multilayer structure with layer concept, and it is not particularly suited for the large public building without absolute layer concept, such as large-scale stadium, airport, station etc., so being not applied for all of construction style。
(3) it is not from the energy dissipation behavior of sinker itself, have ignored seismic energy dissipation structure change of its structural response when geological process is the reason providing additional effective damping ratio due to sinker dissipation seismic energy, and be only based on displacement structure parameter and carry out the optimization of sinker, so, what make that seismic energy dissipation structure anti-seismic performance object technology and economic indicator realize is abundant not, also fail to embody the substitutive characteristics that sinker optimizes, the optimization efficiency causing sinker is low, and effect of optimization is inconspicuous。
Summary of the invention
It is an object of the invention to provide a kind of sinker select and connection and reasonable arrangement, reduce cost, be applicable to have the multilamellar of building structure layer concept feature, executive information systems form, the technical and economic index of design that is capable of structure with energy dissipation devices sinker, raising sinker optimize the seismic energy dissipation structure sinker comprehensive optimization method of the additional effective damping ratio of based target of efficiency, in this, as the foundation that sinker is designed by analysis designer。
The purpose of the present invention realizes by the following technical solutions: the seismic energy dissipation structure sinker comprehensive optimization method of the additional effective damping ratio of a kind of based target, specifically includes following steps:
(1) select the seismic wave for agent structure elasto-plastic time history analysis；
Set agent structure rarely occurred earthquake effect time seismic energy dissipation structure performance objective and requirement, agent structure is not provided with sinker, under the effect of i-th seismic wave, wherein, i=1, 2, 3, ..., n, n is the quantity of seismic wave, the agent structure additional effective damping ratio of superposition repeatedly is carried out the elasto-plastic time history analysis of rarely occurred earthquake, until the agent structure after the additional effective damping ratio of superposition disclosure satisfy that seismic energy dissipation structure performance objective and requirement when this ground seismic wave function, the additional effective damping ratio of this superposition is the additional effective damping ratio ξ of the target corresponding to i-th seismic waveaim(i)；
(3) the additional effective damping ratio ξ of target time to every ground seismic wave functionaim(i)Average, obtain the actual additional effective damping ratio ξ of target of agent structureaim:
In formula: n is the quantity of seismic wave；
(4) primarily determine that the type of sinker, position, form and quantity, and sinker is arranged in agent structure and forms seismic energy dissipation structure；
(5), under the effect of every seismic wave, seismic energy dissipation structure is carried out the elasto-plastic time history analysis of rarely occurred earthquake:
If 1. seismic energy dissipation structure disclosure satisfy that seismic energy dissipation structure performance objective and requirement when i-th ground seismic wave function, proceed to step (6)；
If 2. seismic energy dissipation structure can not meet seismic energy dissipation structure performance objective and requirement when i-th ground seismic wave function, adjust sinker type, position, form and quantity, until seismic energy dissipation structure disclosure satisfy that seismic energy dissipation structure performance objective and requirement when this ground seismic wave function, proceed to step (6)；
(6) the additional effective damping ratio ξ of sinker during i-th ground seismic wave function of calculatingE(i):
ξE(i)=∑ max (Wcj(i))/[4π·max(Wst(i))] formula is 2.
In formula: ξE(i)The additional effective damping ratio of sinker when being i-th ground seismic wave function；Wcj(i)For jth energy dissipation component structure expection relative storey displacement Δ u when i-th ground seismic wave functionj(i)The energy that lower reciprocation cycle consumes for one week, takes maximum hysteretic loop；Wst(i)For seismic energy dissipation structure total strain energy under t expection displacement when i-th ground seismic wave function；Max (Wst(i)) for seismic energy dissipation structure when i-th ground seismic wave function t expection displacement under maximum total strain energy；
(7) the additional effective damping ratio ξ of sinker time to every ground seismic wave functionE(i)Average, obtain the additional effective damping ratio ξ of reality of sinkera:
In formula: n is the quantity of seismic wave；
(8) compare the additional effective damping ratio ξ of reality of sinkeraAdditional effective damping ratio ξ actual in the target of agent structureaim:
If 1. calculate the ξ of gained according to natural ripplea<0.65ξaim；If calculate the ξ of gained according to artificial ripplea<0.8ξaim, proceed to step (9)；
If 2. calculate the ξ of gained according to natural ripplea> 1.1 × 0.65 ξaim；If calculate the ξ of gained according to artificial ripplea> 1.1 × 0.8 ξaim, proceed to step (10)；
Obtain if 3. calculating according to natural ripple: 0.65 ξaim≤ξa≤1.1×0.65ξaim；Obtain if calculating according to artificial ripple: 0.8 ξaim≤ξa≤1.1×0.8ξaim, proceed to step (11)；
(9) rearrange sinker and increase sinker quantity, repeat step (5)～(8), until according to natural ripple calculate obtain: 0.65 ξaim≤ξa≤1.1×0.65ξaim；Calculate according to artificial ripple and obtain: 0.8 ξaim≤ξa≤1.1×0.8ξaim, proceed to step (11)；
(10) adjust the position of sinker and reduce the quantity of sinker, repeat step (5)～(8), until according to natural ripple calculate obtain: 0.65 ξaim≤ξa≤1.1×0.65ξaim；Calculate according to artificial ripple and obtain: 0.8 ξaim≤ξa≤1.1×0.8ξaim, proceed to step (11)；
(11) complete the optimization of sinker in seismic energy dissipation structure performance design。
The reasonability that the present invention is capable of in structure with energy dissipation devices sinker and selects and arrange, using as analyzing the foundation that sinker is designed by designer, and the sinker structure with energy dissipation devices is carried out reasonably optimizing design from the angle of dissipation seismic energy by the present invention, it is adaptable to have the multilamellar of building structure layer concept feature, executive information systems form；Additionally, the optimization of sinker is not only simply adjusted the position of sinker by the present invention, and the quantity and arrangement form to sinker has been also carried out optimization, sinker can be made to be in high efficiency duty in seismic energy dissipation structure, technical and the economic index of the design that is capable of in structure with energy dissipation devices sinker, therefore, it is possible to realize safe efficient, the economic reasonable Arrangement of sinker。
Seismic energy dissipation structure performance objective of the present invention and requirement all have explanation in " seismic design provision in building code " GB50011-2010 (hereinafter referred to as " anti-rule ") and " building energy-dissipating and shock-absorbing technical regulation " JGJ297-2013 (hereinafter referred to as " code "), each seismic energy dissipation structure damping performance target is all different, different requirements is had for different building structure, concrete regulation is specifically determined with reference to " anti-rule " and " code " in the design process according to designer, and passes through through expert's joint examination。
The present invention described step (4) in, the form of sinker refers to the form of support, and such as chevron shaped layout, monocline support is arranged, V-type layout etc.。Primarily determine that the type of sinker, position, form and quantity are to be arranged according to " anti-rule " and the arrangement principle of " code ", such as in maximum displacement place, it is considered to rigidity is uniform, tentatively arranges；And the relative storey displacement and storey stiffness according to each floor of agent structure primarily determines that the quantity of sinker and position are also aspects。
Seismic wave of the present invention is commented unit to provide by peace, and it is documented in peace Commentary Report announcement, and in peace Commentary Report is accused, each moment point of seismic wave, peak value, spectral characteristic, Ground motion duration etc. are all on the books。
As one embodiment of the present invention, described step (6) in, disregard torsion effect, seismic energy dissipation structure when i-th ground seismic wave function t expection displacement under maximum total strain energy max (Wst(i)) calculate according to below equation:
max(Wst(i))=max [(1/2) ∑ Fkt(i)ukt(i)] formula is 4.
In formula: Fkt(i)For particle the k standard value of t, u when the horizontal earthquake action of i-th seismic wavekt(i)The displacement of t standard value during the horizontal earthquake action of i-th seismic wave is corresponded to for particle k。
As a kind of preferred implementation of the present invention, choosing seismic wave according to " anti-rule " and " code ", described seismic wave is at least seven, and wherein the quantity of natural ripple is more than or equal to the 2/3 of seismic wave sum。
As one embodiment of the present invention, described sinker adopts displacement relationship type sinker, velocity correlation type sinker or compound sinker。
Compared with prior art, the present invention has following significant effect:
(1) the reasonability that the present invention is capable of in structure with energy dissipation devices sinker and selects and arrange, using as analyzing the foundation that sinker is designed by designer。
(2) the sinker structure with energy dissipation devices is carried out reasonably optimizing design from the angle of dissipation seismic energy by the present invention, it is adaptable to have the multilamellar of building structure layer concept feature, executive information systems form。
(3) the optimization of sinker is not only simply adjusted the position of sinker by the present invention, and the quantity and arrangement form to sinker has been also carried out optimization, sinker can be made to be in high efficiency duty in seismic energy dissipation structure, technical and the economic index of the design that is capable of in structure with energy dissipation devices sinker, therefore, it is possible to realize safe efficient, the economic reasonable Arrangement of sinker。
Detailed description of the invention
The seismic energy dissipation structure sinker comprehensive optimization method of the additional effective damping ratio of a kind of based target of the present invention, specifically includes following steps:
(1) select the seismic wave for agent structure elasto-plastic time history analysis according to " seismic design provision in building code " GB50011-2010 and " building energy-dissipating and shock-absorbing technical regulation " JGJ297-2013, seismic wave is at least 7, including natural ripple and artificial ripple, natural wave number amount therein is more than or equal to the 2/3 of seismic wave sum, seismic wave is commented unit to provide by peace, it is documented in peace Commentary Report announcement, and in peace Commentary Report is accused, each moment point of seismic wave, peak value, spectral characteristic, Ground motion duration etc. are all on the books；
Set agent structure rarely occurred earthquake effect time seismic energy dissipation structure performance objective and requirement, agent structure is not provided with sinker, under the effect of i-th seismic wave, wherein, i=1, 2, 3, ..., n, n is the quantity of seismic wave, the agent structure additional effective damping ratio of superposition repeatedly is carried out the elasto-plastic time history analysis of rarely occurred earthquake, elasto-plastic time history analysis is prior art, additional effective damping ratio has specified in " anti-rule " and " specification ", until the agent structure after the additional effective damping ratio of superposition disclosure satisfy that seismic energy dissipation structure performance objective and requirement when this ground seismic wave function, the additional effective damping ratio of this superposition is the additional effective damping ratio ξ of the target corresponding to i-th seismic waveaim(i)。This process is: such as to the additional effective damping ratio 5% of agent structure superposition one, carry out the elasto-plastic time history analysis of rarely occurred earthquake, such as seismic energy dissipation structure performance objective and require that one of them is " post is unyielding ", and the result obtained by elasto-plastic time history analysis is " post is flexible ", now illustrate under meeting the premise of seismic energy dissipation structure performance objective and requirement, the better effects if reached, but so can improve cost, and such effect need not be reached, so reducing on the basis of additional effective damping ratio 5%, again to another additional effective damping ratio 4.5% of agent structure superposition, carry out the elasto-plastic time history analysis of rarely occurred earthquake, if meeting seismic energy dissipation structure performance objective and requirement, so, 4.5% is the additional effective damping ratio ξ of the target corresponding to this seismic waveaim(i), namely it is the additional effective damping ratio of seismic energy dissipation structure goal setting under i-th ground seismic wave function；Under the effect of every seismic wave, determine the additional effective damping ratio ξ of the target corresponding to this seismic wave all as procedure described aboveaim(i)；
(3) the additional effective damping ratio ξ of target time to every ground seismic wave functionaim(i)Average, obtain the actual additional effective damping ratio ξ of target of agent structureaim:
In formula: n is the quantity of seismic wave；
(4) it is arranged according to the arrangement principle in " anti-rule " and " code ", such as in maximum displacement place, consider that rigidity is uniformly tentatively arranged, primarily determine that the type of sinker, position, form and quantity, sinker adopts displacement relationship type sinker, velocity correlation type sinker or compound sinker, determines according to concrete practical situation；And the position of sinker refers to sinker position in agent structure, the form of sinker refers to the form of support, such as chevron shaped layout, monocline support layout, V-type layout etc., more than primarily determine that the type of sinker, position, form and quantity are prior aries, sinker is arranged in agent structure and forms seismic energy dissipation structure；
(5), under the effect of every seismic wave, seismic energy dissipation structure is carried out the elasto-plastic time history analysis of rarely occurred earthquake:
If 1. seismic energy dissipation structure disclosure satisfy that seismic energy dissipation structure performance objective and requirement when i-th ground seismic wave function, proceed to step (6)；
If 2. seismic energy dissipation structure can not meet seismic energy dissipation structure performance objective and requirement when i-th ground seismic wave function, adjust sinker type, position, form and quantity, until seismic energy dissipation structure disclosure satisfy that seismic energy dissipation structure performance objective and requirement when this ground seismic wave function, proceed to step (6)；
(6) the additional effective damping ratio ξ of sinker during i-th ground seismic wave function of calculatingE(i):
ξE(i)=∑ max (Wcj(i))/[4π·max(Wst(i))] formula is 2.
In formula: ξE(i)The additional effective damping ratio of sinker when being i-th ground seismic wave function；Wcj(i)For jth energy dissipation component structure expection relative storey displacement Δ u when i-th ground seismic wave functionj(i)The energy that lower reciprocation cycle consumes for one week, takes maximum hysteretic loop；Wst(i)For seismic energy dissipation structure total strain energy under t expection displacement when i-th ground seismic wave function；Max (Wst(i)) for seismic energy dissipation structure when i-th ground seismic wave function t expection displacement under maximum total strain energy；
Disregarding torsion effect, seismic energy dissipation structure is the maximum total strain energy max (W under t expection displacement when i-th ground seismic wave functionst(i)) calculate according to below equation:
max(Wst(i))=max [(1/2) ∑ Fkt(i)ukt(i)] formula is 4.
In formula: Fkt(i)For particle the k standard value of t, u when the horizontal earthquake action of i-th seismic wavekt(i)The displacement of t standard value during the horizontal earthquake action of i-th seismic wave is corresponded to for particle k。
(7) the additional effective damping ratio ξ of sinker time to every ground seismic wave functionE(i)Average, obtain the additional effective damping ratio ξ of reality of sinkera:
In formula: n is the quantity of seismic wave；
(8) compare the additional effective damping ratio ξ of reality of sinkeraAdditional effective damping ratio ξ actual in the target of agent structureaim:
If 1. calculate the ξ of gained according to natural ripplea<0.65ξaim；If calculate the ξ of gained according to artificial ripplea<0.8ξaim, proceed to step (9)；That is: if calculate the ξ of gained according to natural ripplea<0.65ξaim, proceed to step (9)；And the ξ of gained is calculated according to artificial ripplea<0.8ξaim, proceed to step (9)；
If 2. calculate the ξ of gained according to natural ripplea> 1.1 × 0.65 ξaim；If calculate the ξ of gained according to artificial ripplea> 1.1 × 0.8 ξaim, proceed to step (10)；That is: if calculate the ξ of gained according to natural ripplea> 1.1 × 0.65 ξaim, proceed to step (10)；And the ξ of gained is calculated according to artificial ripplea> 1.1 × 0.8 ξaim, proceed to step (10)；
Obtain if 3. calculating according to natural ripple: 0.65 ξaim≤ξa≤1.1×0.65ξaim；Obtain if calculating according to artificial ripple: 0.8 ξaim≤ξa≤1.1×0.8ξaim, proceed to step (11)；
(9) rearrange sinker and increase the quantity of sinker, rearranging sinker and refer to sinker position in agent structure and arrangement form are all rearranged；Repeat step (5)～(8), until according to natural ripple calculate obtain: 0.65 ξaim≤ξa≤1.1×0.65ξaim；Calculate according to artificial ripple and obtain: 0.8 ξaim≤ξa≤1.1×0.8ξaim, proceed to step (11)；
(10) adjust the position of sinker and reduce the quantity of sinker, adjusting the position of sinker and refer to sinker position in agent structure is adjusted；Repeat step (5)～(8), until according to natural ripple calculate obtain: 0.65 ξaim≤ξa≤1.1×0.65ξaim；Calculate according to artificial ripple and obtain: 0.8 ξaim≤ξa≤1.1×0.8ξaim, proceed to step (11)；
(11) complete the optimization of sinker in seismic energy dissipation structure performance design。
Calculating through above, seismic energy dissipation structure performance objective when the layout of sinker meets agent structure rarely occurred earthquake effect and requirement, now, sinker arrangement in agent structure is safety, rationally and economical plan。
Embodiments of the present invention are not limited to this; foregoing according to the present invention; utilize ordinary technical knowledge and the customary means of this area; without departing under the above-mentioned basic fundamental thought premise of the present invention; the present invention can also make the amendment of other various ways, replacement or change, all falls within rights protection scope of the present invention。
Claims (4)
1. a seismic energy dissipation structure sinker comprehensive optimization method for the additional effective damping ratio of based target, specifically includes following steps:
(1) select the seismic wave for agent structure elasto-plastic time history analysis；
Set agent structure rarely occurred earthquake effect time seismic energy dissipation structure performance objective and requirement, agent structure is not provided with sinker, under the effect of i-th seismic wave, wherein, i=1, 2, 3, ..., n, n is the quantity of seismic wave, the agent structure additional effective damping ratio of superposition repeatedly is carried out the elasto-plastic time history analysis of rarely occurred earthquake, until the agent structure after the additional effective damping ratio of superposition disclosure satisfy that seismic energy dissipation structure performance objective and requirement when this ground seismic wave function, the additional effective damping ratio of this superposition is the additional effective damping ratio ξ of the target corresponding to i-th seismic waveaim(i)；
(3) the additional effective damping ratio ξ of target time to every ground seismic wave functionaim(i)Average, obtain the actual additional effective damping ratio ξ of target of agent structureaim:
In formula: n is the quantity of seismic wave；
(4) primarily determine that the type of sinker, position, form and quantity, and sinker is arranged in agent structure and forms seismic energy dissipation structure；
(5), under the effect of every seismic wave, seismic energy dissipation structure is carried out the elasto-plastic time history analysis of rarely occurred earthquake:
If 1. seismic energy dissipation structure disclosure satisfy that seismic energy dissipation structure performance objective and requirement when i-th ground seismic wave function, proceed to step (6)；
If 2. seismic energy dissipation structure can not meet seismic energy dissipation structure performance objective and requirement when i-th ground seismic wave function, adjust sinker type, position, form and quantity, until seismic energy dissipation structure disclosure satisfy that seismic energy dissipation structure performance objective and requirement when this ground seismic wave function, proceed to step (6)；
(6) the additional effective damping ratio ξ of sinker during i-th ground seismic wave function of calculatingE(i):
ξE(i)=Σ max (Wcj(i))/[4π·max(Wst(i))] formula is 2.
In formula: ξE(i)The additional effective damping ratio of sinker when being i-th ground seismic wave function；Wcj(i)For jth energy dissipation component structure expection relative storey displacement Δ u when i-th ground seismic wave functionj(i)The energy that lower reciprocation cycle consumes for one week, takes maximum hysteretic loop；Wst(i)For seismic energy dissipation structure total strain energy under t expection displacement when i-th ground seismic wave function；Max (Wst(i)) for seismic energy dissipation structure when i-th ground seismic wave function t expection displacement under maximum total strain energy；
(7) the additional effective damping ratio ξ of sinker time to every ground seismic wave functionE(i)Average, obtain the additional effective damping ratio ξ of reality of sinkera:
In formula: n is the quantity of seismic wave；
(8) compare the additional effective damping ratio ξ of reality of sinkeraAdditional effective damping ratio ξ actual in the target of agent structureaim:
If 1. calculate the ξ of gained according to natural ripplea<0.65ξaim；If calculate the ξ of gained according to artificial ripplea<0.8ξaim, proceed to step (9)；
If 2. calculate the ξ of gained according to natural ripplea> 1.1 × 0.65 ξaim；If calculate the ξ of gained according to artificial ripplea> 1.1 × 0.8 ξaim, proceed to step (10)；
Obtain if 3. calculating according to natural ripple: 0.65 ξaim≤ξa≤1.1×0.65ξaim；Obtain if calculating according to artificial ripple: 0.8 ξaim≤ξa≤1.1×0.8ξaim, proceed to step (11)；
(9) rearrange sinker and increase the quantity of sinker, repeat step (5)～(8), until according to natural ripple calculate obtain: 0.65 ξaim≤ξa≤1.1×0.65ξaim；Calculate according to artificial ripple and obtain: 0.8 ξaim≤ξa≤1.1×0.8ξaim, proceed to step (11)；
(10) adjust the position of sinker and reduce the quantity of sinker, repeat step (5)～(8), until according to natural ripple calculate obtain: 0.65 ξaim≤ξa≤1.1×0.65ξaim；Calculate according to artificial ripple and obtain: 0.8 ξaim≤ξa≤1.1×0.8ξaim, proceed to step (11)；
(11) complete the optimization of sinker in seismic energy dissipation structure performance design。
2. the seismic energy dissipation structure sinker comprehensive optimization method of the additional effective damping ratio of based target according to claim 1, it is characterized in that: described step (6) in, disregarding torsion effect, seismic energy dissipation structure is the maximum total strain energy max (W under t expection displacement when i-th ground seismic wave functionst(i)) calculate according to below equation:
max(Wst(i))=max [(1/2) Σ Fkt(i)ukt(i)] formula is 4.
In formula: Fkt(i)For particle the k standard value of t, u when the horizontal earthquake action of i-th seismic wavekt(i)The displacement of t standard value during the horizontal earthquake action of i-th seismic wave is corresponded to for particle k。
3. the seismic energy dissipation structure sinker comprehensive optimization method of the additional effective damping ratio of based target according to claim 2, it is characterised in that: described seismic wave is at least seven, and wherein the quantity of natural ripple is more than or equal to the 2/3 of seismic wave sum。
4. the seismic energy dissipation structure sinker comprehensive optimization method of the additional effective damping ratio of based target according to claim 3, it is characterised in that: described sinker adopts displacement relationship type sinker, velocity correlation type sinker or compound sinker。
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| US20110071812A1 (en) * | 2009-09-24 | 2011-03-24 | Texas Instruments Incorporated | Small-Signal Stability Analysis at Transient Time Points of Integrated Circuit Simulation |
| CN103793567A (en) * | 2014-01-28 | 2014-05-14 | 广东省建筑设计研究院 | Time-changing method-evaluation method of effective damping ratio attached on energy dissipation damping structure energy dissipater |
| CN103838918A (en) * | 2014-01-28 | 2014-06-04 | 广东省建筑设计研究院 | Value obtaining method-comprehensive method of additional effective damping ratios of energy dissipaters with energy dissipation and shock absorption structures |
| CN104102779A (en) * | 2014-07-18 | 2014-10-15 | 同济大学 | Energy dissipation and shock absorption optimization design method |
| CN104405054A (en) * | 2014-10-09 | 2015-03-11 | 甘肃省建筑设计研究院 | Method for designing structure with stiction energy dissipater |
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| US20110071812A1 (en) * | 2009-09-24 | 2011-03-24 | Texas Instruments Incorporated | Small-Signal Stability Analysis at Transient Time Points of Integrated Circuit Simulation |
| CN103793567A (en) * | 2014-01-28 | 2014-05-14 | 广东省建筑设计研究院 | Time-changing method-evaluation method of effective damping ratio attached on energy dissipation damping structure energy dissipater |
| CN103838918A (en) * | 2014-01-28 | 2014-06-04 | 广东省建筑设计研究院 | Value obtaining method-comprehensive method of additional effective damping ratios of energy dissipaters with energy dissipation and shock absorption structures |
| CN104102779A (en) * | 2014-07-18 | 2014-10-15 | 同济大学 | Energy dissipation and shock absorption optimization design method |
| CN104405054A (en) * | 2014-10-09 | 2015-03-11 | 甘肃省建筑设计研究院 | Method for designing structure with stiction energy dissipater |
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